Tool for forming bottle-necks.



Nu. 706,344. I Pat'ented A-u'g. 5, I902. E. D. SCHMITT.

V TOOL FOR FORMING BOTTLE NECKS.

.(Application med Jan. 7, 1902.)

(No Model.)

2 Sheets-Shae l.

"iiliiii No. 706,344. 1 Patented Aug. 5, I902. E. D. SCHMITT.

TOOL FOR FORMING BOTTLE NEGKS' (Application filed Jan. 7, 1902.)

(No Model.) 2 Shasta-Sheet z.

W Inmmw rrn S EDXVARD D. SCHMITT, OF BALTIMORE, MARYLAND, ASSIGNOR, BYMESNE ASSIGNMENTS, TO UNIVERSAL SEAL AND STOPPER COMPANY, OF BAL-TIMORE, MARYLAND, AND CAMDEN, NEW JERSEY, A CORPORATION OF NEIV JERSEY.

TOOL FOR FORMING BOTTLE-NECKS.

SPECIFICATION forming part of Letters Patent No. 706,344, dated August5, 1902.

Application filed January 7,1902. Serial No, 88,723. (No model.)

To rtZZ whom it may concern.- serted into the plastic glass that thelower Be it known that I, EDWARD D. SOHMITT, sealing-seat will beultimately formed somea citizen of the United States, residing in theWhat below the boss in which the forming decity of Baltimore and Stateof Maryland, have vices operate. This necessitates a construc- 5invented certain new and useful 'Improvetion and an arrangement of theforming dements in Tools for Forming Bottle- Necks; vices so that theywill be capable of being ex-' and I do declare the following to be afull, tended beyond the boss both laterally and clear, and exactdescription of the invention, longitudinally-that is to say, in thepresent such as will enable others skilled in the art invention thelower edge of the boss is made IO to which it appertains to make and usethe to form a sort of preliminary shoulder when same, reference beinghad to the accompanyplaced in the plastic glass, which shoulder ingdrawings, and to the figures of reference presents the glass in suchshape as to be propmarked thereon, which form a part of this erlyoperated upon by the longitudinally-exspecification. tended part of theforming device, thus pro- 15 This invention relates to tools for formingviding a well-defined shoulder somewhat bethe necks of bottles, jars,&c., and more espeyond the boss, as before mentioned. I have cially to atool for forming in the throat of a found, too, that it is advantageousto so conbottle or jar a chamber in which the seal exnect the jaws andcore and jaws and expandpands, said chamber having anupperlookinging-levers that in the movement of said jaws to shoulder anda lower square or approximately they are always maintained parallel withthe square sealing-seat. I have found in praccore, and thus broughtsquarely down upon tice that the insertion of the core of a tool thematerial in forming the bottle-neck. of this character into abottle-neck causes a A The object of this invention, therefore, is tomovement of the plastic glass in the direcprovide a suitable tool forforming a chamber 25 tion of the movement of the tool and that of thecharacter above mentioned in the neck the pressure upon the outside ofthe bottleof a bottle and one in which the objectionneck produced by theforming-jaws causes a ablefeatures above mentioned are eliminated.further movement of the glass in the direc- In the drawings illustratingthe invention, tion just mentioned, so that when the boss, Figure 1 is acentral longitudinal section of 30 the lower edge of which assists informing the a tool constructed in accordance with my insealing-seat,reaches its final position in the vention, the same being shown in openposibottle-neck the closing of the jaws on the outtion. Fig. 2 is asimilar view of the tool in side causes the glass to run away from theclosed position illustratingabottle in position seat-forming edge of theboss, thus producing between the forming-jaws, with the parts of 3 5 ashoulder with more than the desired inclithe tool in the position theyassume in formnation. ing the chamber. Fig. 3 is a side elevation I amaware that tools involving the same of one of the expanding-levers, withits congeneral idea embodied in the present tool nected linkconstituting the forming device. have been invented; but none of these,so far Fig. 4 is a top plan View of the same; and Fig.

0 as I know, embody a construction capable of 5 is a sectional View of abottle-neck, showing operating upon the glass to produce a chamtheformation of the chamber therein resultber of the desired internalcontour formed by ing from the use of the tool. 0 the tool about to bedescribed. Referring to the drawings,the numeral lin- In forming achamber like or substantially dicates two oppositely-disposed jawsshaped 45 like the one desired in the present instance I on their innerengaging faces, as indicated have found it to be highly important thatthe by the numeral 2, to produce a correspondtool embody such aconstruction as to operate ing formation of the bottle-neck on the out-5 upon the glass in such a manner as it is inside thereof. The rear endsof these jaws are pivotally connected by links 3 to the rear end 4 of acentral core 5. I preferably form integral with the core 5, near itsforward end, a stop or shoulder 6, formed with a conical forwardextension 7, for a purpose hereinafter specified,and said core isfurther formed with a slightly-tapered end 8 to guide said core intoproper position in the bottle-neck, as is usual in tools ofv thischaracter.

The numeral 9 indicates a slot formed in the core in which I pivot at 10the expandinglevers 11 11, which have their rear ends pivoted at 1212 tothe jaws, and their forward ends are bifurcated or forked, as indicatedby the numeral 13 13, for the reception of the rear ends of the links 1414, which are pivoted to the forward ends of said levers by pivots 1515, passing through slightly-elem gated slots 16 16 in said links. Theforward ends of the links 14 14 are pivoted near the forward end of theslot 9 in the core and held therein by a common pivot 17. These links 1414 are cut away adjacent to their forward ends, as shown at 18, Fig. 3,so that when they are put together in the slot the entire thickness ofthe two pieces will be equal to the thickness of the link at the point19, and these links are further cut away, as indicated by the numeral20, so that their forward ends will set between the bifurcated ends 13of the expanding-levers 11, as clearly shown in Fig. 4 of the drawings.Each of the expanding-levers is provided with an inclined shoulder 21,which in the operation of the tool forms the inclined shoulder in 'thebottle-neck, and each of the links 14 is provided with a shoulder 22,which forms the sealing-scat in the operation of the device.

Preferably formed integral with the jaws are cups 23, into which are setsprings 24, having their inner ends seated in depressions in the core,said springs being for the purpose of keeping the jaws normallyseparated and the ends of the lovers and forming ends of the linksnormally retracted in the forward extension 7.

In the operation of the tool, after the forward end of the core isinserted into the bottle-neck the jaws are pressed together, bringingtheir shaping-surfaces in contact with the glass to shape the bottlenear its month. By this movement/of the jaws the levers 11 will berocked on their pivots, thus projecting their forward ends beyond theperiphery of the extension 7, bringing the shoulders 21 into contactwith the glass to form the upper locking-shoulder of the bottle-neck.The links 14 during this movement will have also been projected beyondthe periphery of the extension 7, thus bringing the part a in line withthe part b of the levers and the shoulders 22 of the links beyond theforward edge of said extension 7. When the forming ends of the leversand links are retracted within the extension, the pivots 15 will occupythe forward ends of the slots 16 in the links; but obviously when thejaws are closed and the forming ends of the levers and links are projected the opposite ends of said slots are occupied by said pivots. Itwill be seen that when the tool is first inserted into the bottleneckand the glass made to abut against the stop 6 the extension 7 will forma shoulder in the plastic glass; but this is not the shoulder that isultimately formed, for as the forming-shoulders 22 of the links areprojected beyond the edge of the extension they will engage the materialadjacent to the forward end of the extension and crowd the same downwardor toward the end of the tool, and thus form the desired shoulder, itbeing of course understood that either the tool or the bottle is rotatedor partially rotated to bring about this result. The stop 6 in theoperation performs the additional function of limiting the inwardmovement of the jaws, as is evident.

In the drawings I have shown the jaws held normally apart by spiralsprings; but it is evident that other forms of springs well known inthis art could be substituted for those shown, as the operation of theforming device depends in no way upon the springs that is to say, uponany particular form of springs for holding the jaws normally opennorupon the hinging of the jaws to the core in the manner shown, for I may,if found desirable, modify the tool to adapt it for use with a springsuch as that shown and described in my application Serial No. 7 6,873,filed September 28, 1901, wherein the spring is shown secured to thecore and to the jaws.

It will be seen that by pivoting the rear ends of the jaws to the rearend of the core by the links 3 and the positive pivoting of the leversto the jaws and to the core a longitudinal movement of the core relativeto the jaws is accomplished and the said jaws maintained parallel withsaid core and with each other.

Having thus described my invention, what I claim is-- 1. In a tool forforming bottle-necks, the combination with movable jaws and a centralcore, of lovers connected to the core and jaws, links pivoted in advanceof the lever ends and also to said lever ends, thus in conjunction withsaid ends forming a compound forming device adapted to be projected intooperative position and retracted therefrom by the movement of the jaws,substantially as and for the purpose set forth.

2. In a tool for forming bottle-necks, the combination with a centralcore, of jaws connected to said core, levers rockably secured to thecore and having connection with the jaws, said levers having endsconstituting a part of the forming means, links pivoted to the core andto the ends of said levers and constituting the other part of theforming means, substantially as set forth.

3. In a tool for forming bottle-necks, the combination with a centralcore, of jaws con nected to said core by links, levers pivoted to thecore and to the jaws, whereby the jaws in their opening and closingmovements are maintained parallel to the core and to each other, saidlevers having ends constituting a part of the forming device, linkspivoted to the core and to the ends of said levers, and constituting theother part of the forming device, substantially as set forth.

4. In a tool for forming bottle-necks, the combination with a centralcore having a slot therein, of jaws connected with said core by links,levers pivoted in said slot and to the jaws, the ends of said leversconstituting a part of the forming means, links pivoted in said slot inadvance of the ends of said levers and pivoted to the ends thereof andconstituting the other part of the forming means, substantially as setforth.

5. In a bottle-neck-forming tool, the combination with a central corehaving a slot therein near its forward end, jaws connected with saidcore and means for holding them normally separated, a stop on the coreand having a forward extension, levers pivoted in the slot and to thejaws, the ends of said levers constituting a part of the forming means,links pivoted in the slot in advance of the lever ends and pivotedthereto and constituting the other part of the forming means,substantially as described.

6. In a tool for forming bottle-necks, the combination with a slottedcentralcore, of jaws connected with said core, means for normallyseparating said jaws, a stop on said core having a forward extensionadapted to enter the bottle-neck, levers pivoted to the core and to thejaws and having their ends shaped to constitute part of the formingdevice and working in said extension, links pivoted in the slot andhaving elongated slots in their rear ends, pins passing through the endsof the levers and the slots in the links, whereby when the jaws areclosed the forming means on said links will be projected beyond theforward extension both laterally and longitudinally, substantially asdescribed.

7. In a tool for forming bottle-necks, the combination with a centralcore having an enlargement near its forward end of jaws movable to andfrom said core for the purpose set forth, levers connected with the jawsand core, a forming device constituted in part by the lever ends, linkshaving connection with the core and with the lever ends and constitutinga part of the forming device,

forming device on the links being adapted to be projected beyond theenlargementboth laterally and longitudinally when the jaws are movedtoward each other, substantially as described.

8. In a tool for forming bottle-necks, the combination with a centralcore having an enlargement near its forward end and a stop or shoulder6, of jaws connected with said core, a forming device mounted in saidcore formed in part by levers pivoted to the core and having connectionswith the jaws, and links pivoted in the core and having connection withthe lever ends, said forming device being adapted to rest normally inthe enlargement of the core but to be projected beyond said enlargementboth laterally and longitudinally, substantially as and for the purposeset forth.

9. In a tool for forming bottle-necks, the combination with a centralcore having links 3 pivoted to its rear end, jaws pivotally connected tosaid links and provided with form' ing-surfaces at their forward ends,an enlargement near the forward end of said core, a forming devicemounted in said core and formed in part by levers pivoted to the coreand having connection with the jaws, and links pivoted in the core inadvance of the enlargement and having connection with the lever ends,said forming device being adapted to rest normally in the enlargement ofthe core but to be projected beyond said enlarge ment both laterally andlongitudinally when the jaws are moved toward each other, substantiallyas and for the purpose set forth.

10. In a tool for forming bottle-necks, the combination with movablejaws and a central core, of levers connected with the core and operableby the jaws, members mounted in advance of the lever ends and alsohaving connection with said lever ends, thus forming a compound formingdevice, the parts thereof being adapted to be projected into.

operative position both laterally and longitudinally with respect to thecore, and retracted therefrom by the movement of the jaws, substantiallyas described.

In testimony whereof I affix my signature in presence of two witnesses.

EDWARD D. SCI-IMITT.

Witnesses:

JOHN W. HEwEs, MABEL E. STEARNS.

